Lots of connections
Yes, this is correct. GNU Radio can get the data from HDSDR. BUT! All the devices I use also have native support in GNU Radio, so you can skip HDSDR/Windows altogether. Sometimes I use one, other times both - just depends on what's going on.VK2DAG wrote:So you have your USRP (or FunCube or RTL2832U/DVB or..) plugged into a windoze box running HDSDR with the "EXT IO" running BorIP so that your Linux box running GNU-Radio can access the data (audio?) from HDSDR. Is this right?
IIRC SDR-IQ uses USB, but I'm not sure what it looks like to the computer (an audio card? or a custom interface?). SoftRocks are also USB now? The trick is that any 'SDR' that is in fact a quadrature receiver (that outputs analog signals to be received by a sound card, or combined in a single unit with integrated audio codec like the FUNcube Dongle) can be used with GNU Radio, because you can just use an Audio Source block and take each channel as I and Q respectively. Tuning the radio is the tricky bit in that instance (since you need to know how to 'talk' to it, e.g. FUNcube appears as an HID deice you can send special commands to). I'm honestly not sure what sort of support there is for that hardware in GNU Radio (e.g. if streaming/control is more complex), so other people might have to weigh in here... I've only seen them used with mostly closed-source Windows apps.VK2DAG wrote:Now I don't have a USRP (or FunCube or RTL2832U/DVB or..) I have a SDR-IQ and some SoftRocks (with 192 KHz card). So the only way I can play with GNU-Radio is connected the SDR-IQ to the linux laptop or access SDR recording across my network. Is this right?
Yeah they're alright for the price! $20-$30!VK2DAG wrote:Need to get me one of them cheap TV tuner things now
BTW: It got a mention on Hack a Day! http://hackaday.com/2012/03/30/working- ... uner-card/